Physiological causes, transient ischemic attack, cerebral infarction, cervical spondylosis, carpal tunnel syndrome and so on are considered as causes of right hand numbness. 1. Physiological causes: If the right hand is compressed due to posture and other reasons, the numbness of the right hand can be restored to normal after the compression is lifted. 2. Transient ischemic attack: this disease is mainly related to atherosclerosis in the brain. After the onset of the patient will appear transient cerebral tissue ischemia and hypoxia and the right hand numbness, mostly within one hour to relieve. 3. Cerebral infarction: when atherosclerosis occurs in the brain, the blood vessels are occluded, and cerebral infarction occurs due to ischemia and hypoxia in the brain tissue, and the patient may have numbness in the right hand and other symptoms. The diagnosis is confirmed by head CT or MRI. 4. Cervical spondylosis: this disease is related to cervical degeneration, when the nerve root in the neck is compressed, it can be accompanied by symptoms of numbness in the right hand, diagnosed by cervical spine MRI and other tests. 5. Carpal Tunnel Syndrome: This disease occurs when the median nerve is compressed and the wrist joint movement is limited. Numbness of the right hand may also be caused by other reasons, it is recommended to consult the hospital in a timely manner, under the guidance of the doctor’s standardized diagnosis and treatment.